Bruna, Ondřej https://orcid.org/0000-0002-3844-1763
Levora, Tomáš
Holub, Jan https://orcid.org/0000-0003-3350-534X
Article History
Received: 3 January 2018
Accepted: 23 April 2018
First Online: 8 May 2018
Competing Interests
: The authors declare no competing interests.